Safety-screen for safes and strong-rooms.



` E. BRANLY z H. LAURENT. SAFETY SCREEN FOR SAFBS AND STRONG ROOMS. ArPLmA'rIon FILED JULY s, laos.

926,385. Patented June 29, 1909.

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E. BRANLY & H. LAURENT. SAFETY SCREEN FOB. SAFBS AND STRONG ROOMS.

APPLIoATIoN FILED JULY a, 190s.

Q. Y I@ v Md/ j E. BRANLY da H. LAURENT. SAFETY SCREEN FOR SAFBS AND STRONG ROOMS.

APPLIaATroH FILED JULY 9, 190s.

926,385. Patented June 29, 1909.

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E. BRANLY dz H. LAURENT. SAFETY SGEEN POB SAFES AND STRONG 300MB.

APPLIOATIUH FILED JULY 9, 190B.

Patonted June 29, 1909.

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$AFTY-SCREEN FOR SAFES AND STRONG-ROOMS.

v.'ppe'ci'ication of Letters Patent.

rammed Jimena, 11909:

Appncun med ruiy 9,1908. serial No. 442,712.

Toiallwhom fit .fmofy concern:

/Be 1t lenownthat we, EDOUARD BRANLY and HENRY LAL'RENT, citizens ol' the Repubhc of France, residing,respectively, at 21 Avenue'` de Tourville, Paris, and 15 RueBoccador,

vented certain new and useful Improvements 1n- Safety-Screensv rlor Safes and Strong-- Rooms', 'oit which the following is a specification.y

f yThis .in-'fention relates'v to safety-screen devicesfor afes or strong boxes and strong rooms 4based on the application of the known principle consisting of using hollow plating filled with compressed air and communicating with a manometer the movable part of which closes an electric circuit and produc-es an alarm signal, when the pressure falls by reason of' the perforation of@ the plating at an' part.` f L f he inventionyfhas for its principal object to provide simple constructions for such purpose as hereinafter described enabling the said screens to be applied in a practical manner to safes and strong rooms; and it further relates to additional security devices which will be indicated in the description.

In the annexed drawings Figures 1 and 2 show a strong room provided with a screen according to the invention, Fig. 1 being a vertical section on the line -B of Fi 2 and Fi 2 a horizontal section on the bro en line C E F of Fig. 1. Fig. 3 shows in horizontal section to enlarged scale a safety device applicable to the locks of the doors oi' safes or strong rooms according to my invention. Figs. 4 and 5 show diagraininatically in horizontal and vertical section respec tively a strong room fitted with an internal screen according to the invention. Fig. 6 shows diagrammatically a stron-g room with a screen or shutter partly'inside and partly outside.

Referring to Figs. 1 and 2 it will be seen that the protecting device for a safe is corn,- osed of a hollow shutter formed oi two parallel sheets of steel, 6, 7, surrounding the sai'e on all its vertical sides except in front oil the door. The hollow panel thus constituted is placed between the usual outer steel shutter 8 and the inner refractory lining 9 and 1s connectedwith the u per and lower horizontal panels, countersun i into the ref rector)7 lining ymeans of a suitable numberof tubes 10, 11. The upper anel is provided with an opening 12- closed by a plate 13 fixed to the upper shutter 14 having'the object of producing an escape of air ilf thc top ol' the saleisraiscdy. The door ol' the sn'l'c is provided with a separate panel 15 placed betneen the outer steel i y door and thcrcl'ractory lining; :communism #Pari-s, 1n the ARepublic of France, have 1nf tion between the panel oi the door andthe other covering panels is insured bynflionn connection comprisingl a junction piece :.115 fixed at the end oi' the bent tube 1,7 entering he planel 15, the said tube 17 beingpushed e action of afspring 18 against anoutlct i connection 19 secured in the trame of the@ door and located at the end of the tube-20.

It will be seen that a safe provided with a covering such as has been described cannot be attacked at any point without an i1nn1e diate escape of the compressed air contained in the cover; communication between the covering and a manometer indicator of a known type such lished by means of the tube 21 sealed in the wall and passing through the wall of the safe to the interior of a sealing socket 22, which gives it the appearance of a-sealing bolt. By means of the wires X X the nianometer M is in electrical connection with a suitable alarm signal (not shown),

In order to protect rooms and safes against a person in possession of keys, who, by rapid y opening the door might stop up the out let 19 and prevent the indicating apparatus from operating, the locks of the rooms and the safes are provided with a security device shown in Fig. 3.

It is known that the opening of safety locks is effected in threesuccessive operations: 1st. Opening of the controlling or securing lock. 2d. Ouening the principal lock. 3d. Opening the lock-bolts by means of a handle.

It suffices that the air 'under rcssure should escape during the opening o` the se- ,curing lock since fior opening the door it is necessary to effect the two other operations which takes a length ot' time sufficient for the operation of the indicating apparatus.

In the arrangement shown in Fig. 3, a valve 28 is kept closed by a spring 24 and opens when, during the opening ofthe securing lock, the bolt 25 passes from .c to el.

From Figs. 4 to (i 1t will bc seen shutter for strong rooms is composed of the hollow panels f26 formed by two parallel walls of sheet steel and corres ending to each of the walls of' the room. `l1e said hollow panels are held together by means of double as indicated at M is estab- .that the headed joint covers 27 for the walls and double corner brackets 28 for the angles.

The atmospheric eon'lmunication of the dilferent panels is assured by means of tubuluresconnected by junction tubes.

29 re resents the junction of the two juxtapose panels. 30 the junction of the two angle panels. 3l the junction oi' a vertical panel with a horizontal panel protecting fhe yceiling or the floor. The door is protected by a hollow panel 32 similar to the wall panels, placed between the outer steel shut-ter and the refraetor lining and communicating with the said wal panels by means ofy a joint like that previously described and a tubulure 33.

In the case where the inside of the chamber to be covered is not clear, as for example the, walls of strongV rooms provided with f1.0 .safes location eases, shelves, the proteetin aisl will be placed outside as indicate( 6, the said panels 34 being attached to ftlieinterior panels by means of tubulures 35.

The door will be provided with a safety de- 25 vice described with reference te the safe.

Having now described 'our invention, what we laimasl new and desire to secure by Letters Patent is:

y 1. A safety screen arrangement for safes 80 and strong rooms comprising in combination hollow panels formed of two parallel sheets of -metal surrounding the safe on all its sides.

and placed between the usual outer steel shutter and the inner refractory lining, tubes 85 connecting said hollow panels one with each other except with the panel ofthe door, a flexible joint connection ada ted to establish communi cation between t 1e panel ofthe door and the other panels, a plate secured to the upper shutter and closing a hole formed in the upper panel', and a lnanometer indieator communicating with the hollow panels, substantially as described and for the purpose set forth.`

2. A safety screen arrangement for safe and strong rooms comprising in combination hollow panels formed of two parallel sheets of metal surrounding the safe on all its sides and placed between the usual outer steel shutter and the inner refractory lining, tubes connecting said hollow panels one with each other except with the panel of the door, a

`iexible joint connection adapted to establish communication between t 1e panel of the door and the other panels, a valve device closing a tubulure formed on the panel of the door, a bolt adapted to open said valve de vice by pressure when the key of the safety lock o )ens the securing; lock, and a manoine ter in icator communicating; with the hollow panels, substantially as described and i'or the purposeset forth.

In testimony whereof we have aliixed our signatures in presence o`f two witnesses.

EDOUARD BRANLY. l HENRY LAURENT.

Witnesses:

H. C. Coxn, AN'ro'iNE Lsvolx. 

